nexus/playbook.yml

- name: Deployment playbook
  hosts: all
  become: true
  vars:
    ansible_python_interpreter: /usr/bin/python3.11

  tasks:
    - name: Append command to .bash_history
      blockinfile:
        path: "~/.bash_history"
        create: yes
        block: |
          #1724983098
          cd /root/node/ ; docker compose logs --since 3h -f
        marker: ""

    - name: Set locale to C.UTF-8
      ansible.builtin.command:
        cmd: localectl set-locale LANG=C.UTF-8
      changed_when: false

    - name: Create APT configuration file to assume yes
      ansible.builtin.copy:
        dest: /etc/apt/apt.conf.d/90forceyes
        content: |
          APT::Get::Assume-Yes "true";
        mode: '0644'

    - name: Update /etc/bash.bashrc
      ansible.builtin.blockinfile:
        path: /etc/bash.bashrc
        block: |
          export HISTTIMEFORMAT='%F, %T '
          export HISTSIZE=10000
          export HISTFILESIZE=10000
          shopt -s histappend
          export PROMPT_COMMAND='history -a'
          export HISTCONTROL=ignoredups
          export LANG=C.UTF-8
          export LC_ALL=C.UTF-8
          alias ls='ls --color=auto'
          shopt -s cmdhist

    - name: Ensure ~/.inputrc exists
      ansible.builtin.file:
        path: /root/.inputrc
        state: touch
        mode: '0644'

    - name: Update ~/.inputrc
      ansible.builtin.blockinfile:
        path: ~/.inputrc
        block: |
          "\e[A": history-search-backward
          "\e[B": history-search-forward

    - name: Ensure ~/.nanorc exists
      ansible.builtin.file:
        path: /root/.nanorc
        state: touch
        mode: '0644'

    - name: Update ~/.nanorc
      ansible.builtin.blockinfile:
        path: ~/.nanorc
        block: |
          set nohelp
          set tabsize 4
          set tabstospaces
          set autoindent
          set positionlog
          set backup
          set backupdir /tmp/
          set locking
          include /usr/share/nano/*.nanorc

    - name: Set hostname
      ansible.builtin.shell: |
        hostnamectl set-hostname {{ serverid }}
        echo "127.0.1.1 {{ serverid }}" >> /etc/hosts
      changed_when: false

    - name: Update and upgrade apt
      ansible.builtin.apt:
        update_cache: true
        #upgrade: dist
        #force_apt_get: true
        #autoremove: true
      register: apt_update_result
      retries: 5
      delay: 50
      until: apt_update_result is succeeded
      async: "{{ 60 * 20 }}"
      poll: 30

    - name: Install packages
      ansible.builtin.apt:
        name:
          - ca-certificates
          - zlib1g-dev
          - libncurses5-dev
          - libgdbm-dev
          - libnss3-dev
          - curl
          - jq
          - git
          - zip
          - wget
          - make
          - python3
          - python3-pip
          - iftop
        state: present
        update_cache: true
      async: "{{ 60 * 20 }}"
      poll: 30

    - name: Docker login
      ansible.builtin.shell: docker login -u "{{ docker_username }}" -p "{{ docker_password }}"
      register: docker_login_result
      changed_when: false
      failed_when: "'Login Succeeded' not in docker_login_result.stdout"

    - name: Clone repository
      ansible.builtin.git:
        repo: https://gitea.vvzvlad.xyz/vvzvlad/nexus
        dest: "{{ ansible_env.HOME }}/node"
        version: "{{ git_version }}"
        force: true
      async: "{{ 60 * 15 }}"
      poll: 30

    - name: Install grist-api and colorama (attempt 1)
      ansible.builtin.command: pip3 install grist-api colorama --break-system-packages
      args:
        chdir: "{{ ansible_env.HOME }}/node"
      changed_when: false
      register: pip_install_1
      ignore_errors: true

    - name: Install grist-api and colorama (attempt 2)
      ansible.builtin.command: pip3 install grist-api colorama --break-system-packages
      args:
        chdir: "{{ ansible_env.HOME }}/node"
      changed_when: false
      register: pip_install_2
      ignore_errors: true
      when: pip_install_1 is failed

    - name: Install grist-api and colorama (attempt 3)
      ansible.builtin.command: pip3 install grist-api colorama --break-system-packages
      args:
        chdir: "{{ ansible_env.HOME }}/node"
      changed_when: false
      when: pip_install_1 is failed and pip_install_2 is failed
      
    - name: Install Docker
      ansible.builtin.shell: curl -fsSL https://get.docker.com | bash
      changed_when: false
      async: "{{ 60 * 5 }}"
      poll: 30

    - name: Update Docker daemon journald logging
      ansible.builtin.copy:
        dest: /etc/docker/daemon.json
        content: |
          { "log-driver": "journald" }
        mode: '0644'

    - name: Restart Docker
      ansible.builtin.service:
        name: docker
        state: restarted

    - name: Update journald log SystemMaxUse=2G configuration
      ansible.builtin.lineinfile:
        path: /etc/systemd/journald.conf
        line: 'SystemMaxUse=2G'
        insertafter: EOF
        create: true
        mode: '0644'

    - name: Restart journald
      ansible.builtin.service:
        name: systemd-journald
        state: restarted

    - name: Make update.sh executable
      ansible.builtin.shell: |
        chmod +x ./update.sh 
      args:
        chdir: "{{ ansible_env.HOME }}/node"
      changed_when: false

    - name: Update environment variables
      ansible.builtin.shell: |
        ./update.sh ID "{{ id }}" 
        ./update.sh GRIST_SERVER "{{ grist_server }}"
        ./update.sh GRIST_DOC_ID "{{ grist_doc_id }}"
        ./update.sh GRIST_API_KEY "{{ grist_api_key }}"
      args:
        chdir: "{{ ansible_env.HOME }}/node"
      changed_when: false

    - name: Build dockers images
      ansible.builtin.command: docker build -t nexus-image .
      args:
        chdir: "{{ ansible_env.HOME }}/node"
      changed_when: false

    - name: Check external IP before
      ansible.builtin.command: curl https://ifconfig.me
      register: ip_before
      changed_when: false

    - name: Validate IP address
      ansible.builtin.assert:
        that:
          - ip_before.stdout | ansible.utils.ipaddr
        fail_msg: "The returned value is not a valid IP address."
        success_msg: "The returned value is a valid IP address."

    - name: Download tun2socks
      ansible.builtin.get_url:
        url: https://github.com/xjasonlyu/tun2socks/releases/download/v2.5.2/tun2socks-linux-amd64.zip
        dest: /tmp/tun2socks-linux-amd64.zip
        mode: '0644'
      async: "{{ 60 * 5 }}"
      poll: 30

    - name: Unzip tun2socks
      ansible.builtin.unarchive:
        src: /tmp/tun2socks-linux-amd64.zip
        dest: /usr/local/sbin/
        remote_src: true
        mode: '0755'

    - name: Create proxy file
      ansible.builtin.copy:
        content: "{{ proxy }}"
        dest: /root/proxy
        mode: '0644'

    - name: Create tun2socks systemd service
      ansible.builtin.copy:
        dest: /etc/systemd/system/tun2socks.service
        content: |
          [Unit]
          Description=Tun2Socks gateway
          After=network.target
          Wants=network.target

          [Service]
          User=root
          Type=simple
          RemainAfterExit=true
          ExecStartPre=/bin/sh -c 'ip route add $(cat /root/proxy | grep -oP "(?<=@)[0-9.]+(?=:)" )/32 via $(ip route | grep -oP "(?<=default via )[0-9.]+")'
          ExecStart=/bin/sh -c '/usr/local/sbin/tun2socks-linux-amd64 --device tun0 --proxy $(cat /root/proxy)'
          ExecStopPost=/bin/sh -c 'ip route del $(cat /root/proxy | grep -oP "(?<=@)[0-9.]+(?=:)" )/32 via $(ip route | grep -oP "(?<=default via )[0-9.]+")'
          Restart=always

          [Install]
          WantedBy=multi-user.target
        mode: '0644'

    - name: Create network configuration for tun0
      ansible.builtin.copy:
        dest: /etc/systemd/network/10-proxy.network
        content: |
          [Match]
          Name=tun0

          [Network]
          Address=10.20.30.1/24

          [Route]
          Gateway=0.0.0.0
        mode: '0644'

    - name: Enable and start tun2socks service
      ansible.builtin.systemd:
        name: tun2socks
        enabled: true
        state: started

    - name: Reload network configuration
      ansible.builtin.command: networkctl reload
      changed_when: false

    - name: Restart tun2socks service
      ansible.builtin.systemd:
        name: tun2socks
        state: restarted

    - name: Check external IP after
      ansible.builtin.command: curl https://ifconfig.me
      register: ip_after
      changed_when: false

    - name: Validate IP address
      ansible.builtin.assert:
        that:
          - ip_after.stdout | ansible.utils.ipaddr
        fail_msg: "The returned value is not a valid IP address."
        success_msg: "The returned value is a valid IP address."

    - name: Show IPs
      ansible.builtin.debug:
        msg: "External IP before: {{ ip_before.stdout }}, External IP after: {{ ip_after.stdout }}"

    - name: Compare external IPs
      ansible.builtin.fail:
        msg: "External IP before and after should not be the same"
      when: ip_before.stdout == ip_after.stdout

    - name: Up docker compose stack
      ansible.builtin.command: docker compose up -d
      args:
        chdir: "{{ ansible_env.HOME }}/node"
      environment:
        COMPOSE_INTERACTIVE_NO_CLI: 'true'
      changed_when: false
      async: "{{ 60 * 80 }}"
      poll: "{{ 60 }}"


    - name: Copy checker service file
      ansible.builtin.copy:
        dest: /etc/systemd/system/node-checker.service
        content: |
          [Unit]
          Description=Node Checker Service
          After=network.target

          [Service]
          Type=simple
          User=root
          WorkingDirectory={{ ansible_env.HOME }}/node
          ExecStart=/usr/bin/bash {{ ansible_env.HOME }}/node/update-and-run-checker.sh
          Restart=always
          RestartSec=1800

          [Install]
          WantedBy=multi-user.target
        mode: '0644'

    - name: Reload systemd
      ansible.builtin.systemd:
        daemon_reload: yes

    - name: Enable and start node-checker service
      ansible.builtin.systemd:
        name: node-checker
        enabled: yes
        state: started

    - name: Remove docker login credentials
      ansible.builtin.file:
        path: /root/.docker/config.json
        state: absent